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Search Results for: cellular

Cellular respiration

Cellular Respiration Definition The main function of cellular respiration is to break down glucose to form energy. What is... Read More

Endocytosis

Endocytosis Definition What is endocytosis in biology? Endocytosis is a cellular process by which a cell internalizes any... Read More

Anaerobic respiration

Anaerobic Respiration Definition What is anaerobic respiration? Anaerobic (cellular) respiration is a respiratory process... Read More

The Evolutionary Development of Multicellular Organisms

The beginning of the Cambrian era saw a widespread arrival of multi-cellular organisms, particularly in the form of sponges.... Read More

Adenosine triphosphate

Adenosine Triphosphate Definition noun plural: adenosine triphosphates (biochemistry) An organic compound that is... Read More

Unicellular

Unicellular organisms are organisms consisting of one cell only that performs all vital functions including metabolism,... Read More

Extracellular matrix

Definition noun, plural: extracellular matrices The non-cellular portion of a tissue produced and secreted by cells and... Read More

Cellular

Definition adjective (1) Of, pertaining to, or resembling a cell. (2) Derived from, or consisting of cell(s). (3) Having... Read More

Subcellular

Definition adjective (1) Smaller than an ordinary cell, as in subcellular organisms. (2) Below cellular level or scope, as... Read More

Noncellular

Definition adjective (1) Not composed of, or not containing cell(s). (2) Without cellular organization, as in a cytoplasm... Read More

Smooth endoplasmic reticulum

Smooth Endoplasmic Reticulum Definition Smooth endoplasmic reticulum (sER) is (a part of) endoplasmic reticulum that is... Read More

Fragmentation

Fragmentation Definition What is fragmentation? In general, fragmentation refers to the state or the process of breaking... Read More

Micromolecule

Micromolecules Definition How to define micromolecule? Micromolecules are relatively small molecules that are combined... Read More

Living things

Living Things Definition A living thing pertains to any organism or a life form that possesses or shows the characteristics... Read More

Organelle

An organelle refers to any of the various cellular structures that perform a distinctive function inside a cell. The cell is... Read More

Krebs cycle

Definition noun A cycle of reactions catalyzed by enzymes in which the pyruvate derived from nutrients and converted to... Read More

Protist

Protist Definition What is a protist? All protists are eukaryotes, i.e. organisms with a nucleus. However, they are... Read More

Plasma membrane

Do all cells have a plasma (or cell) membrane? Yes, all cells have a biological membrane that separates the protoplasm from... Read More

Carbohydrate

Carbohydrate Definition A biomolecule refers to any molecule that is produced by living organisms. As such, most of them... Read More

Hypotonic solution

Hypotonic Solution Definition What is a hypotonic solution? It refers to a solution that contains a lower amount of solute... Read More

Centrosome

Centrosome Definition What is a centrosome? The centrosome is considered to be the main microtubule-organizing... Read More

Glycolysis

Definition noun The initial metabolic pathway of cellular respiration in which a series of reactions happening in the... Read More

Cell

A cell is a membrane-bound structure that occurs as a functional independent unit of life (such as in unicellular organisms,... Read More

Active transport

Active transport is a type of cellular transport in which substances (e.g. ions, glucose, and amino acids) are transported... Read More

Organism

An organism refers to a living thing that has an organized structure, can react to stimuli, reproduce, grow, adapt, and... Read More

Intercellular

Definition adjective (1) (being located) Between or among cells. (2) Of or pertaining to that (e.g. substance, space,... Read More

Pinocytosis

Pinocytosis Definition What is pinocytosis?  Pinocytosis is the ingestion of extracellular fluids, i.e. the fluid... Read More

Tissue

Tissue Definition What is tissue in the body? The body tissue is an aggregation of cells that function together and have a... Read More

Acellular

Definition adjective (1) Of or pertaining to a tissue that is not made of cells or not divided into cells, such as hyphae... Read More

Oxidative phosphorylation

Definition noun A metabolic pathway that generates ATP from ADP through phosphorylation that derives the energy from the... Read More

Intracellular fluid

Definition noun The body fluid within the cell composed mainly of water dissolved ions, and other molecules Supplement The... Read More

Embden-Meyerhof-Parnas pathway

Definition noun A glycolytic pathway whereby glucose is metabolized and converted ultimately to pyruvate, and results in a... Read More

Homeostasis

Homeostasis is the tendency not to stray from the range of favorable or ideal internal conditions. Such conditions must be... Read More

Glucose

Glucose occurs naturally and is ubiquitous. It is one of the three most common monosaccharides; the other two are fructose... Read More

Intracellular digestion

Definition noun A form of digestion wherein the breaking down of materials into smaller components takes place inside the... Read More

Intracellular

Definition adjective Occurring or being (situated) inside a cell or cells. Supplement For example, intracellular fluid... Read More

Cytoplasm

Cytoplasm definition noun plural: cytoplasms cy·to·plasm, ˈsaɪtoʊˌplæzəm The contents of a cell surrounded by... Read More

Homeostatic Mechanisms and Cellular Communication

Homeostasis is the relatively stable conditions of the internal environment that result from compensatory regulatory... Read More

Protein Activity and Cellular Metabolism

Protein Binding Sites The ability of various molecules and ions to bind to specific sites on the protein surface forms the... Read More

Extracellular

Definition adjective Occurring or being (situated) outside the cell or cells. Supplement For example, extracellular fluid is... Read More